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Just Magic

Scientists have developed a Harry Potter-like invisibility cloak that makes objects vanish

The cloak works by altering light waves going through an object

SCIENTISTS are a step closer to a Harry Potter-style invisibility cloak.

They have developed a device that makes solid objects completely vanish.

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 Will we one day have an invisibility cloak like Harry's?
Will we one day have an invisibility cloak like Harry's?

The gadget, called a spectral cloak, even worked in bright daylight in tests.

Canada-based research leader José Azaña said: “Our work represents a breakthrough in the quest for invisibility cloaking.”

The human eye sees light that bounces off objects. Objects reflect different light depending on their colour, for example green.

But in a new approach, optics scientists looked at altering light waves going through an object.

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The cloak turns this light another colour, such as blue, as it goes through the green object.

The colour then reverts to green on the other side so the view is not distorted to our eyes.

The scientists' invisibility cloak wouldn't be out of place in Harry's wizarding world

This overcomes the problem faced by current cloaking devices, which bounce light around objects, causing a visible shimmer.

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Other models work properly only when an object is illuminated with just one colour of light.

But white light is made up of several colours.

The technology could one day be used to make objects invisible from every direction.

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It also offers hopes of making data transmitted over fibre-optic lines more secure, thwarting criminals.

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In the films, boy wizard Harry inherits an invisibility cloak from his dad and uses it to spy on teachers and sneak around.

China claims it has created a mysterious 'super material' that can make anything INVISIBLE

Researcher Luis Romero Cortes added: “Conventional cloaking solutions rely on altering the path of light around the object to be concealed.

“Our proposal avoids this by allowing the wave to travel through the target object rather than around it.”

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